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// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2019 Mellanox Technologies.
#include "health.h"
#include "lib/eq.h"
#include "lib/mlx5.h"
int mlx5e_reporter_named_obj_nest_start(struct devlink_fmsg *fmsg, char *name)
{
int err;
err = devlink_fmsg_pair_nest_start(fmsg, name);
if (err)
return err;
err = devlink_fmsg_obj_nest_start(fmsg);
if (err)
return err;
return 0;
}
int mlx5e_reporter_named_obj_nest_end(struct devlink_fmsg *fmsg)
{
int err;
err = devlink_fmsg_obj_nest_end(fmsg);
if (err)
return err;
err = devlink_fmsg_pair_nest_end(fmsg);
if (err)
return err;
return 0;
}
int mlx5e_reporter_cq_diagnose(struct mlx5e_cq *cq, struct devlink_fmsg *fmsg)
{
struct mlx5e_priv *priv = cq->channel->priv;
u32 out[MLX5_ST_SZ_DW(query_cq_out)] = {};
u8 hw_status;
void *cqc;
int err;
err = mlx5_core_query_cq(priv->mdev, &cq->mcq, out);
if (err)
return err;
cqc = MLX5_ADDR_OF(query_cq_out, out, cq_context);
hw_status = MLX5_GET(cqc, cqc, status);
err = mlx5e_reporter_named_obj_nest_start(fmsg, "CQ");
if (err)
return err;
err = devlink_fmsg_u32_pair_put(fmsg, "cqn", cq->mcq.cqn);
if (err)
return err;
err = devlink_fmsg_u8_pair_put(fmsg, "HW status", hw_status);
if (err)
return err;
err = mlx5e_reporter_named_obj_nest_end(fmsg);
if (err)
return err;
return 0;
}
int mlx5e_reporter_cq_common_diagnose(struct mlx5e_cq *cq, struct devlink_fmsg *fmsg)
{
u8 cq_log_stride;
u32 cq_sz;
int err;
cq_sz = mlx5_cqwq_get_size(&cq->wq);
cq_log_stride = mlx5_cqwq_get_log_stride_size(&cq->wq);
err = mlx5e_reporter_named_obj_nest_start(fmsg, "CQ");
if (err)
return err;
err = devlink_fmsg_u64_pair_put(fmsg, "stride size", BIT(cq_log_stride));
if (err)
return err;
err = devlink_fmsg_u32_pair_put(fmsg, "size", cq_sz);
if (err)
return err;
err = mlx5e_reporter_named_obj_nest_end(fmsg);
if (err)
return err;
return 0;
}
int mlx5e_health_create_reporters(struct mlx5e_priv *priv)
{
int err;
err = mlx5e_reporter_tx_create(priv);
if (err)
return err;
err = mlx5e_reporter_rx_create(priv);
if (err)
return err;
return 0;
}
void mlx5e_health_destroy_reporters(struct mlx5e_priv *priv)
{
mlx5e_reporter_rx_destroy(priv);
mlx5e_reporter_tx_destroy(priv);
}
void mlx5e_health_channels_update(struct mlx5e_priv *priv)
{
if (priv->tx_reporter)
devlink_health_reporter_state_update(priv->tx_reporter,
DEVLINK_HEALTH_REPORTER_STATE_HEALTHY);
if (priv->rx_reporter)
devlink_health_reporter_state_update(priv->rx_reporter,
DEVLINK_HEALTH_REPORTER_STATE_HEALTHY);
}
int mlx5e_health_sq_to_ready(struct mlx5e_channel *channel, u32 sqn)
{
struct mlx5_core_dev *mdev = channel->mdev;
struct net_device *dev = channel->netdev;
struct mlx5e_modify_sq_param msp = {};
int err;
msp.curr_state = MLX5_SQC_STATE_ERR;
msp.next_state = MLX5_SQC_STATE_RST;
err = mlx5e_modify_sq(mdev, sqn, &msp);
if (err) {
netdev_err(dev, "Failed to move sq 0x%x to reset\n", sqn);
return err;
}
memset(&msp, 0, sizeof(msp));
msp.curr_state = MLX5_SQC_STATE_RST;
msp.next_state = MLX5_SQC_STATE_RDY;
err = mlx5e_modify_sq(mdev, sqn, &msp);
if (err) {
netdev_err(dev, "Failed to move sq 0x%x to ready\n", sqn);
return err;
}
return 0;
}
int mlx5e_health_recover_channels(struct mlx5e_priv *priv)
{
int err = 0;
rtnl_lock();
mutex_lock(&priv->state_lock);
if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
goto out;
err = mlx5e_safe_reopen_channels(priv);
out:
mutex_unlock(&priv->state_lock);
rtnl_unlock();
return err;
}
int mlx5e_health_channel_eq_recover(struct mlx5_eq_comp *eq, struct mlx5e_channel *channel)
{
u32 eqe_count;
netdev_err(channel->netdev, "EQ 0x%x: Cons = 0x%x, irqn = 0x%x\n",
eq->core.eqn, eq->core.cons_index, eq->core.irqn);
eqe_count = mlx5_eq_poll_irq_disabled(eq);
if (!eqe_count)
return -EIO;
netdev_err(channel->netdev, "Recovered %d eqes on EQ 0x%x\n",
eqe_count, eq->core.eqn);
channel->stats->eq_rearm++;
return 0;
}
int mlx5e_health_report(struct mlx5e_priv *priv,
struct devlink_health_reporter *reporter, char *err_str,
struct mlx5e_err_ctx *err_ctx)
{
netdev_err(priv->netdev, "%s\n", err_str);
if (!reporter)
return err_ctx->recover(err_ctx->ctx);
return devlink_health_report(reporter, err_str, err_ctx);
}
#define MLX5_HEALTH_DEVLINK_MAX_SIZE 1024
static int mlx5e_health_rsc_fmsg_binary(struct devlink_fmsg *fmsg,
const void *value, u32 value_len)
{
u32 data_size;
u32 offset;
int err;
for (offset = 0; offset < value_len; offset += data_size) {
data_size = value_len - offset;
if (data_size > MLX5_HEALTH_DEVLINK_MAX_SIZE)
data_size = MLX5_HEALTH_DEVLINK_MAX_SIZE;
err = devlink_fmsg_binary_put(fmsg, value + offset, data_size);
if (err)
break;
}
return err;
}
int mlx5e_health_rsc_fmsg_dump(struct mlx5e_priv *priv, struct mlx5_rsc_key *key,
struct devlink_fmsg *fmsg)
{
struct mlx5_core_dev *mdev = priv->mdev;
struct mlx5_rsc_dump_cmd *cmd;
struct page *page;
int cmd_err, err;
int end_err;
int size;
if (IS_ERR_OR_NULL(mdev->rsc_dump))
return -EOPNOTSUPP;
page = alloc_page(GFP_KERNEL);
if (!page)
return -ENOMEM;
err = devlink_fmsg_binary_pair_nest_start(fmsg, "data");
if (err)
return err;
cmd = mlx5_rsc_dump_cmd_create(mdev, key);
if (IS_ERR(cmd)) {
err = PTR_ERR(cmd);
goto free_page;
}
do {
cmd_err = mlx5_rsc_dump_next(mdev, cmd, page, &size);
if (cmd_err < 0) {
err = cmd_err;
goto destroy_cmd;
}
err = mlx5e_health_rsc_fmsg_binary(fmsg, page_address(page), size);
if (err)
goto destroy_cmd;
} while (cmd_err > 0);
destroy_cmd:
mlx5_rsc_dump_cmd_destroy(cmd);
end_err = devlink_fmsg_binary_pair_nest_end(fmsg);
if (end_err)
err = end_err;
free_page:
__free_page(page);
return err;
}
int mlx5e_health_queue_dump(struct mlx5e_priv *priv, struct devlink_fmsg *fmsg,
int queue_idx, char *lbl)
{
struct mlx5_rsc_key key = {};
int err;
key.rsc = MLX5_SGMT_TYPE_FULL_QPC;
key.index1 = queue_idx;
key.size = PAGE_SIZE;
key.num_of_obj1 = 1;
err = devlink_fmsg_obj_nest_start(fmsg);
if (err)
return err;
err = mlx5e_reporter_named_obj_nest_start(fmsg, lbl);
if (err)
return err;
err = devlink_fmsg_u32_pair_put(fmsg, "index", queue_idx);
if (err)
return err;
err = mlx5e_health_rsc_fmsg_dump(priv, &key, fmsg);
if (err)
return err;
err = mlx5e_reporter_named_obj_nest_end(fmsg);
if (err)
return err;
return devlink_fmsg_obj_nest_end(fmsg);
}
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